kleinert



(No Model.)

' I. B. KLEINERT.

METHOD OF JOINING RUBBER FABRICS. No. 298,095. PatentedMay 6, 1884.

. UNITED STATES PATENT QFFIcE.

ISAAC n. KLEINERT, on NEW YORK, N. Y.

; METHOD OF .iolNTfie RUBBER FABRICS.

SPECIIICATION forming part of LetterePatexit No. 298,095, dated May 6,1884.

Application filed February 21, 1e84, (No model.) I

I To all whom itgmcty concern.-

New York,in the county Be it known magnetic B. KLmNEn'r, of of New Yorkand State of New York,- have invented certain new and usefulImprovements in Methods of J oining Rubber Fabrics; and I do herebydeclarethe following to be a full, clear, andexact description of theinvention, such as will. enable others skilled in the art to which itappertains to make and use the same.

My invention relates'to an improvement in the method of 'unitingpiecesof fibrous rubbered fabrics. The method commonly in use foruniting fabrics of this character consists in laying or lapping one edgeoveranother, with cement or other adhesivep reparation between theparts, and then either stitching the parts for additional strengthv ornot, as'the case may require. This method is objectionable, first,because it allows the moisture to creep along the surface of one piece,and thereby come in contact with the opposite surface of the other vpiece, and this the moisture will do in spite of the impervious qualityof the material itself or adhesive preparation used for uniting thepieces; and, secondly, because of the roughness ofthe seam or lapon bothsides of the fabric. In the ease of dress-shields in par-' ticularthetransmission of the moisture'to that part which is to be protected is ofa damaging nature.

, The object of my preseutinvention is to provide a method of joiningtwo pieces of rubbered'fabricin such a manner as to prevent theobjectionable transmission of moisture from onesurface of the fabric tothe oppositeat the same time render the seam surface, and smooth.

My process may be more fully understood by reference to the accompanyingdrawings, in which- Figure 1 represents the face, andFig. 2 the back, ofa strip of stockinet formed by uniting two pieces.

3 contact whi .My method consists in, ,first applying a preparation ofrubber to each of the edges to bejoined, and,'secondly, placing theedges in e rubber is .soft, and thus uniting them the cohesion of therubber. A third dditional step, when greater strength is cquired,consists in cementing a thin strip of suitable material over the seam onthe back surface of the fabric. By this method, the moisture, as itfollows the thread of the fabric, is not brought thereby in contact withthe opposite surface, and is furthermore prevented to a great extentfrom passing the seam by rubbered edges, where they are joined. The seamthus formed, it will be l Iavingfull y described my invention, what Iclaim as new, Patent, is- 1 1. The method of uniting pieces of rubber-edfabric by applying a preparation of rubber to the'edges to be'joined,and then bringing the edges in contact without overlapping them, toallow the rubber to cohere, substantially as set forth. 1

2. A seam formed by the cohesion of rubber, said rubber having beenapplied to two edges anddesire to secure by Letters 'ot'rubbered fabric,and a strengthening-strip cemented over the joined edges,

substantially asset forth. I

in testimony whereof I have signed this specification in the presence oftwo subscribing witnesses. ISAAC B; KLEINERT.

Witnesses: 4

Josurir S. ivIicuAuL, Josnrit It. LYM'AN.

